In paper industry, recycled pulp is used to make recycled pulp to reduce
The amount of fiber, and actively improving the recycling rate of secondary fiber, is one of the development directions of the current paper industry in the world. According to statistics, recycled fiber accounted for 35% of papermaking raw materials in recent years, and the utilization rate of waste paper in developed countries of the paper industry exceeded 50%, while the utilization rate of waste paper in China reached 30% at present. With the development of papermaking industry, waste paper The proportion of reuse will get faster development.
---- The key technology for making recycled pulp from recycled waste paper is deinking with chemical treatment of waste paper, and the performance of deinking agent directly affects the quality of recycled pulp. Efficient waste paper deinking agent--Neutral deinking agent is the development direction of the paper industry, and it is also the subject of many research institutes in China in recent years. It can not only reduce the pH value of wastewater, but also increase the deinking rate of paper products. It has the advantages of being non-toxic, odorless, non-corrosive, non-flammable, good fluidity, and long storage period. The focus of recent industrialization of waste paper deinking is to develop and produce high-efficiency waste paper deinking agent and form special and distinctive series of products, to manufacture batch production equipment with an annual output of thousands of tons, to meet the needs of domestic waste paper recycling, and then Improve the quality of paper products.
----Deinking process mainly washing and flotation two.
---- Washing method Deinking technology developed earlier, flotation method is a new technology, the latter widely used in Western Europe, Japan. Compared with the washing method, the flotation method has a good deinking effect, the fiber recovery rate can be further increased by 20%, and the waste water treatment is more economical.
----In 2000, domestic paper mills required the deinking agent (pulp) of waste paper to be 3,000-5,000 tons. Currently, the deinking of the washing method also accounts for a large part, so the amount and demand of deinking agent for waste paper flotation will be It will grow exponentially.
---- Based on the advanced experience at home and abroad, researchers have successfully developed a deinking agent for neutral waste paper specifically for the requirements of waste newsprint paper (ONP) and old miscellaneous paper (OMG) flotation deinking process. . The product not only has the advantages of the international advanced waste paper deinking agent, but also has a simple production process, low equipment investment, low production cost and high investment return.
---- The process has been verified by industrial production and is a mature process. The whole waste paper is used as fiber raw material, and deinking, flotation, and washed pulp are made into newsprint paper on a fourdrinier paper machine. The product quality has reached the national newsprint GB1910-89Bs level standard, among which the vertical and horizontal breaking length and opacity and other important technical indicators have reached Grade A standards. The product is suitable for the deinking of a variety of waste papers, with good operating performance, excellent deinking performance, and high whiteness after deinking. Under the same conditions and other deinking agents at home and abroad to do comparative test, whiteness increased by 2-5 percentage points, flotation whitening effect was significantly increased by about 13 whiteness units, with less fiber loss, product performance and stability advantages.
---- After the individual steps of the domestic waste paper deinking agent production process have undergone technological transformation, it can significantly increase production and reduce costs. The newly-built waste paper deinking agent production workshop with an annual output of 1,000 tons will require an investment of approximately 135,000 yuan. After the project is completed, the production cost of the ton product will be less than 5,000 yuan and the selling price will be as high as 0.9 million yuan. Calculated according to the 2001 average annual sales price of 11,000 yuan / ton, the annual tax-inclusive sales of 850-1100 million yuan, the annual profit and tax up to 4 million yuan, the investment recovery period of 2.50 months, the return on investment is greater than 50%.
The amount of fiber, and actively improving the recycling rate of secondary fiber, is one of the development directions of the current paper industry in the world. According to statistics, recycled fiber accounted for 35% of papermaking raw materials in recent years, and the utilization rate of waste paper in developed countries of the paper industry exceeded 50%, while the utilization rate of waste paper in China reached 30% at present. With the development of papermaking industry, waste paper The proportion of reuse will get faster development.
---- The key technology for making recycled pulp from recycled waste paper is deinking with chemical treatment of waste paper, and the performance of deinking agent directly affects the quality of recycled pulp. Efficient waste paper deinking agent--Neutral deinking agent is the development direction of the paper industry, and it is also the subject of many research institutes in China in recent years. It can not only reduce the pH value of wastewater, but also increase the deinking rate of paper products. It has the advantages of being non-toxic, odorless, non-corrosive, non-flammable, good fluidity, and long storage period. The focus of recent industrialization of waste paper deinking is to develop and produce high-efficiency waste paper deinking agent and form special and distinctive series of products, to manufacture batch production equipment with an annual output of thousands of tons, to meet the needs of domestic waste paper recycling, and then Improve the quality of paper products.
----Deinking process mainly washing and flotation two.
---- Washing method Deinking technology developed earlier, flotation method is a new technology, the latter widely used in Western Europe, Japan. Compared with the washing method, the flotation method has a good deinking effect, the fiber recovery rate can be further increased by 20%, and the waste water treatment is more economical.
----In 2000, domestic paper mills required the deinking agent (pulp) of waste paper to be 3,000-5,000 tons. Currently, the deinking of the washing method also accounts for a large part, so the amount and demand of deinking agent for waste paper flotation will be It will grow exponentially.
---- Based on the advanced experience at home and abroad, researchers have successfully developed a deinking agent for neutral waste paper specifically for the requirements of waste newsprint paper (ONP) and old miscellaneous paper (OMG) flotation deinking process. . The product not only has the advantages of the international advanced waste paper deinking agent, but also has a simple production process, low equipment investment, low production cost and high investment return.
---- The process has been verified by industrial production and is a mature process. The whole waste paper is used as fiber raw material, and deinking, flotation, and washed pulp are made into newsprint paper on a fourdrinier paper machine. The product quality has reached the national newsprint GB1910-89Bs level standard, among which the vertical and horizontal breaking length and opacity and other important technical indicators have reached Grade A standards. The product is suitable for the deinking of a variety of waste papers, with good operating performance, excellent deinking performance, and high whiteness after deinking. Under the same conditions and other deinking agents at home and abroad to do comparative test, whiteness increased by 2-5 percentage points, flotation whitening effect was significantly increased by about 13 whiteness units, with less fiber loss, product performance and stability advantages.
---- After the individual steps of the domestic waste paper deinking agent production process have undergone technological transformation, it can significantly increase production and reduce costs. The newly-built waste paper deinking agent production workshop with an annual output of 1,000 tons will require an investment of approximately 135,000 yuan. After the project is completed, the production cost of the ton product will be less than 5,000 yuan and the selling price will be as high as 0.9 million yuan. Calculated according to the 2001 average annual sales price of 11,000 yuan / ton, the annual tax-inclusive sales of 850-1100 million yuan, the annual profit and tax up to 4 million yuan, the investment recovery period of 2.50 months, the return on investment is greater than 50%.